IWC / Portofino / IW510104
IWC Portofino IW510104
IWC · Portofino

Portofino

REF. IW510104

We source this reference from dealers and private owners. Condition, box and papers, year and price are agreed with you before any deal.

Reference
IW510104
Diameter
-
Case
Rose gold
Movement
Manual winding

What we agree before the deal

Condition
Box and papers
Year
Price

Technical characteristics

BrandIWC
CollectionPortofino
ReferenceIW510104
Case material18 ct red gold
BraceletAlligator strap
MovementManual-winding
Source: luxury-watch.com catalogue archive (2021). Checked 4 Nov 2026.
Archive notes, 2021

In the Portofino Hand-Wound Eight Days, the IWC-manufactured 59210-calibre movement will run precisely and reliably for a full 192 hours, or 8 days, before it automatically stops. Strictly speaking, it is 9 days, but the extra day in reserve ensures that the movement maintains as constant a driving torque as possible and continues to run precisely. The owner will always be on the safe side if he winds his watch once a week.The power remaining can be read off on the power reserve display on the dial. Together with the small seconds display and date display, this gives the dial a pleasing equilibrium. The indexless balance has a frequency of 28,800 beats per hour and, together with the Breguet spring bent into shape in accordance with age-old watchmaking tradition, helps to make the watch exceptionally accurate. The watch is available with an 18-carat red gold case, slate-coloured dial and solid gold indices. It has a transparent sapphire-glass back and a dark brown alligator leather strap from the House of Santoni.

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